<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .font{
            font-size: 50px;
        }
    </style>
</head>
<link rel="stylesheet" href="CSS/bootstrap.min.css">
<body>
    <span class="font glyphicon glyphicon-search" aria-hidden="true"></span>
    <button type="button" class="btn btn-default" aria-label="Left Align">
        <span class="glyphicon glyphicon-align-left" aria-hidden="true"></span>
      </button>
      
      <button type="button" class="btn btn-default btn-lg">
        <span class="glyphicon glyphicon-star" aria-hidden="true"></span> Star
      </button>
      <div class="dropdown">
        <button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenu1" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true">
          Dropdown
          <span class="caret"></span>
        </button>
        <ul class="dropdown-menu" aria-labelledby="dropdownMenu1">
          <li><a href="#">Action</a></li>
          <li><a href="#">Another action</a></li>
          <li><a href="#">Something else here</a></li>
          <li role="separator" class="divider"></li>
          <li><a href="#">Separated link</a></li>
        </ul>
      </div>
      <script src="JS/jquery.min.js"></script>
      <script src="JS/bootstrap.min.js"></script>
</body>
</html>